Powertrain tester - RAET1000 portal tester

The RAET1000 is a highly integrated and portable EV powertrain tester specialised in the research and development, manufacturing line, and on-site testing of electric vehicle power systems. It meets the test requirements of drivers and motors of various voltages and power levels, and it is compatible with the market’s current mainstream torque/speed sensor signals., to realise the synchronous measurement and recording of DC power parameters, AC power parameters, and mechanical power system parameters. This tester supports AC and DC voltage from 5VP to 1250VP, AC and DC current from 5Ap to 1000Ap, 10V analogue voltage input, 0-20mA/4-20mA analogue current input, and pulse signal input with peak value less than 20V/400kHz.

The tester’s accuracy completely fulfils and surpasses the criteria of national standards for test instrument accuracy:

“GB/T 16318-1996 Basic test techniques for rotating traction motors”

“GB/T 29307-2012 Drive Motor System for Electric Vehicles Reliability Test Method”

“GB/T 18488.2-2015 Drive Motor System for Electric Vehicle Part 2: Test Method”

Highly Integrated EV Powertrainer tester

The tester integrates 4 voltage sensors, 4 current sensors, sensor conditioning circuit, power analyzer, motor board (torque & speed measurement), sensor auxiliary power supply in a portable box.

High Precision, Wide Range, All sensors covered

Voltage Measurement

At present, most of the power analyzers used for EV driver testing have a maximum test voltage of about 1000V. In the face of the current higher voltage power system, twice the overshoot voltage will be clamped by the instrument and cannot be measured correctly. The maximum direct measurement voltage of RAET1000 can be expanded to 2200Vp, realizing the measurement of twice the overshoot voltage of the driver output PWM wave.

Current Measurement

The test report shows that the input current of a driver with a rated input current of 600A can be as small as 1A at low speed and small torque. The RAET1000 fully takes this into consideration. In the range of 1~1000A, the DC input current can meet the requirement of 0.05%rd Accuracy requirements. For a typical current sensor, this means that its full-scale accuracy is better than 1ppm!

Torque & speed Measurement

Torque speed measurement is compatible with mainstream torque/speed sensors currently on the market. Support: ● Voltage output type: ±10V; ● Current output type: 0~20mA, 4~20mA; ● Frequency output type: 0.1Hz~400kHz; ● Use the same sampling frequency as the electrical signal to measure the torque and speed signals synchronously, and obtain the real-time waveform of the instantaneous shaft power.

Easy to operate on site, highly efficient, less wirings

The RAET1000 EV powertrain tester is highly integrated, the connections between all test units have been completed internally, and the field connections are simplified to a minimum:

Testing technicians only need to:

pass four current wires through the tester;
connect the three AC and two DC voltage wires to voltage terminals
and connect the torque meter output cable to the T/N port;
Finally, use a network cable to connect to the host computer to start testing and recording.

Functions of RAET1000 EV powertrain Tester

RAET1000 EV powertrain tester supports real-time display voltage, current, harmonics and rotation speed curve, and it also records the data to allow user to analysis the histroical data and curves. What is more, the tester also provide about 100 variables, and this feature enables the secondary development and make it much easier.

All parameter displayed same screen

The drive input electrical parameters, drive output/motor input electrical parameters, motor output electrical parameters, drive efficiency, motor efficiency, etc. are simultaneously measured and displayed on the same screen during the EV Powertrain Test.

Historical data record & display

During the test, RAET1000 EV powertrain tester can record the trend curves of nearly 100 characteristic values, and can simultaneously display the trend curves of 13 characteristic values on the same screen.

RAET1000 measures all characteristic quantities in integer cycles (DC and AC synchronously). The shortest update time is one signal cycle and is not limited by the signal cycle. When the signal frequency is as high as 1000Hz, the minimum update time is 1ms.

RAET000 has a built-in large-capacity flash memory, and the recording time of the trend curve is almost unlimited.

Real-time curve display & analysis

Relying on the powerful computing power of modern processors, RAET1000 EV powertrain tester performs synchronous high-speed sampling of signals such as DC voltage, current, AC voltage and current, and torque speed, and calculates in real time to obtain the input power of the driver, the output (input) power of the driver and the motor’s output power during the EV Powertrain test. The instantaneous value of the output power is displayed in real time on a coordinate axis with signals such as voltage and current. 13 channels can be displayed at the same time.

Extra-ordinary harmonics analysis capability

RAET1000 EV Powertrain tester supports harmonic analysis up to 2000th order, comparing to conventional power analyzers generally only analyze the 100th harmonic, and some instruments can analyze the 500th harmonic. However, the drive harmonics are mainly concentrated near the integer multiple of the switching frequency.
For a driver with a switching frequency up to 20k, when the fundamental frequency is 50Hz, the 500th harmonic analysis frequency is only 25kHz, higher harmonics around 2 times and above the switching frequency cannot be observed by conventional analyzers.

technical performance parameter RAET1000 EV Powertrain Tester

RAET1000 sDK Variables available for EV Powertrain test

Number	Name	Remarks - EN	Number	Name	Remarks - EN
1	U1_AVG	Arithmetic mean of U1	47	Ia_AVG	Arithmetic mean of Ia
2	U1_RMS	Effective value of U1	48	Ia_H01	Fundamental value of Ia
3	U1_MAX	Maximum value of U1	49	Ia_RMS	root mean square value of Ia
4	U1_MIN	Minimum value of U1	50	Ia_MEAN	Calibration mean of Ia
5	U1_P-P	Peak-to-peak value of U1	51	Ia_MAX	the maximum value of Ia
6	I1_AVG	Arithmetic mean of I1	52	Ia_MIN	Minimum value of Ia
7	I1_RMS	Effective value of I1	53	Ia_THD	Total Harmonic Distortion of Ia
8	I1_MAX	Maximum value of I1	54	Ia_F	Frequency of Ia
9	I1_MIN	Minimum value of I1	55	Ia_PHASE	Phase of Ia
10	I1_P-P	Peak-to-peak value of I1	56	Ia_P-P	Ia peak-to-peak
11	P1_AVG	Arithmetic mean of DC power	57	Ib_AVG	Arithmetic mean of Ib
12	Uab_AVG	Arithmetic mean of Uab	58	Ib_H01	Fundamental value of IIb
13	Uab_H01	Fundamental value of Uab	59	Ib_RMS	RMS value of Ib
14	Uab_RMS	root mean square value of Uab	60	Ib_MEAN	Calibration mean of Ib
15	Uab_MEAN	Calibration mean of Uab	61	Ib_MAX	Maximum value of Ib
16	Uab_MAX	Maximum value of Uab	62	Ib_MIN	Minimum value of Ib
17	Uab_MIN	Minimum value of Uab	63	Ib_THD	Total Harmonic Distortion of Ib
18	Uab_THD	Total Harmonic Distortion of Uab	64	Ib_F	frequency of Ib
19	Uab_F	Total Harmonic Distortion of Uab	65	Ib_PHASE	Phase of Ib
20	Uab_PHASE	Phase of Uab	66	Ib_P-P	peak-to-peak value of Ib
21	Uab_P-P	Peak-to-peak value of Uab	67	Ic_AVG	Arithmetic mean of Ic
22	Ubc_AVG	Arithmetic mean of Ubc	68	Ic_H01	Fundamental value of Ic
23	Ubc_H01	Fundamental value of Ubc	69	Ic_RMS	RMS value of Ic
24	Ubc_RMS	root mean square value of Ubc	70	Ic_MEAN	Calibration mean of Ic
25	Ubc_MEAN	Calibration mean of Ubc	71	Ic_MAX	The maximum value of Ic
26	Ubc_MAX	Maximum value of Ubc	72	Ic_MIN	Minimum value of Ic
27	Ubc_MIN	Total Harmonic Distortion of Ubc	73	Ic_THD	Total Harmonic Distortion of Ic
28	Ubc_THD	Minimum value of Ubc	74	Ic_F	Frequency of Ic
29	Ubc_F	Frequency of Ubc	75	Ic_PHASE	Phase of Ic
30	Ubc_PHASE	Phase of Ubc	76	Ic_P-P	Peak-to-peak value of Ic
31	Ubc_P-P	Peak-to-peak value of Ubc	77	U2_AVG	Average of Uab_AVG, Ubc_AVG, Uca_AVG
32	Uca_AVG	Arithmetic mean of Uca	78	U2_H01	Average of Uab_H01, Ubc_H01, Uca_H01
33	Uca_H01	Fundamental value of Uca	79	U2_RMS	Average of Uab_RMS, Ubc_RMS, Uca_RMS
34	Uca_RMS	root mean square value of Uca	80	U2_MEAN	Average of Uab_MEAN, Ubc_MEAN, Uca_MEAN
35	Uca_MEAN	Calibration mean of Uca	81	I2_AVG	Average value of Ia_AVG, Ib_AVG, Ic_AVG
36	Uca_MAX	The maximum value of Uca	82	I2_H01	Average value of Ia_H01, Ib_H01, Ic_H01
37	Uca_MIN	Minimum value of Uca	83	I2_RMS	Average value of Ia_RMS, Ib_RMS, Ic_RMS
38	Uca_THD	Total Harmonic Distortion of Uca	84	I2_MEAN	Average of Ia_MEAN, Ib_MEAN, Ic_MEAN
39	Uca_F	Frequency of Uca	85	P2_AVG	The sum of Pab_AVG and Pcb_AVG
40	Uca_PHASE	Phase of Uca	86	P2_H01	The sum of Pab_H01 and Pcb_H01
41	Uca_P-P	Peak-to-peak value of Uca	87	Pab_AVG	Average power of Pab
42	F	fundamental frequency	88	Pab_H01	Fundamental power of Pab
43	cosφ	power factor	89	Pcb_AVG	Average power of PCB
44	T	torque	90	Pcb_H01	Fundamental power of Pcb
45	N	Rotating speed	91	η1	drive efficiency
46	P3	Motor shaft power	92	η2	Motor efficiency